Sounds like a hard drive about to go south.
Backup your files now.
Please help. I have a sony vaio desk that when it is on for extended time will click loudly ,on & off internally. this happens the most when I am running something long IE.download,or Burning to cd.Sometimes it hapens for no reason.Whatever the task is it will stop then start at the next click then stop.every 2 seconds.THe machine also slows down and hich-ups{technical word} after on hour of playing basic childs game.Turning machine off & restart usually solves this one.Thanks

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